Variable

A scientist is testing which flavor of ice cream melts the fastest. What would his controlled variables be? (choose ALL that apply)

• The flavor of ice cream

• the kind of cone the ice creams are in

• the place in the room where the ice cream is

• the size of the scoop

• the time it takes to melt

What is the DEPENDENT variable (effect that is measured) in this experiment?"Do tall people jump further than short people?"

• height of the person

• weight of the person

• how fast the person runs

• how far the person jumps

Tags

NGSS.MS-PS2-2

The variable that is being tested, counted, or measured and how it reacts to the independent variable is known as:

• Independent Variable

• Controlled Variable

• Dependent Variable

Tags

NGSS.MS-PS2-2

These are the variables that should stay the same. They do not get any changes in order to make for a fair test.

• Dependent Variables

• Controlled variables

• Independent Variables

Tags

NGSS.MS-PS2-2

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

• the different surfaces

• using the same ball

• how high they bounce

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

• Whether salt is added or not

• Boiling Point

• Amount of water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

How many independent variables are allowed to be changed in an experiment?

• 1

• 2

• as many as you want

• 0

Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.

• She used different types of seeds/plants.

• The plants are in different kinds of pots.

• She did not plant very many plants.

• Seed age might not make a difference.

Tags

NGSS.MS-LS1-5

Which variable do you change for a scientific investigation?

• Dependent variable

• Independent variable

• Controlled variable

• Varying variable

Tags

NGSS.MS-PS2-2

NGSS.MS-PS1-2

Which variable reacts to what you change in a scientific investigation?

• Dependent variable

• Independent variable

• Controlled variable

• a varying variable

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1